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http://www.nasa.gov/mission_pages/mars/news/marsmethane.htmlMartian Methane Reveals the Red Planet is not a Dead PlanetThe team found methane in the atmosphere of Mars by carefully observing the planet over several Mars years (and all Martian seasons) with NASA's Infrared Telescope Facility, run by the University of Hawaii, and the W. M. Keck telescope, both at Mauna Kea, Hawaii.